Coin Metrics
Coin Metrics is a Boston-based crypto financial intelligence provider founded in 2017, selling institutional-grade cryptoasset network (on-chain) data, exchange market data (trades, quotes, order books, candles, derivatives), CMBI indexes, reference rates, and reference/security-master data. Everything is delivered through a single documented API v4 - REST at api.coinmetrics.io/v4 and WebSocket streaming at wss://api.coinmetrics.io/v4 as paid, API-key products - plus a free, keyless Community API at community-api.coinmetrics.io/v4 under a CC BY-NC 4.0 license, with flat files, Python and R clients, and Google Sheets as additional delivery channels. A complete OpenAPI 3.0.2 definition is published on the docs site. Coin Metrics is now part of Talos: coinmetrics.io 301-redirects to talos.com/our-solutions/data/overview, while docs.coinmetrics.io and the api/community-api hosts remain live under the Coin Metrics brand.
Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.
API Evangelist profiles Coin Metrics the way a machine reads it — 44 machine-readable artifacts across 1 API, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Coin Metrics scores 42.9/100 (developing), with a separate agent-readiness read of 25/100 (agent aware). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-08 · rubric v0.20.0
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How we profile Coin Metrics
Each block below is one kind of artifact we hold for Coin Metrics. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 19
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Coin Metrics Blockchain Explorer Job API
Endpoints for creating async jobs for blockchain entities.
Coin Metrics Blockchain Metadata API
Blockchain metadata endpoints
Coin Metrics Catalog API
Catalog of available for your `api_key` data.
Use the [Full catalog](#tag/Full-catalog) endpoints for the full list of supported by Coin Metrics data.
DEPRECATED: See ...
Coin Metrics Catalog v2 API
Catalog of available for your `api_key` data.
Use the [Full catalog V2](#tag/Full-catalog-v2) endpoints for the full list of supported by Coin Metrics data.
Coin Metrics Chain Monitor tools API
Endpoints for working with chain monitor data.
Coin Metrics Constituent Snapshots API
Endpoints for getting the snapshots of various constituents
Coin Metrics Constituent Timeframes API
Endpoints for getting the timeframes of various constituents
Coin Metrics Full blockchain entities v2 API
Endpoints for fetching full blockchain entities.
Coin Metrics Full catalog API
The Full catalog returns the full range of data that is supported by Coin Metrics across all our products.
If you are a client looking to understand the data that is availa...
Coin Metrics Full catalog v2 API
The Full catalog returns the full range of data that is supported by Coin Metrics across all our products.
If you are a client looking to understand the data that is availa...
Coin Metrics Jobs API
Jobs API endpoints
Coin Metrics List of blockchain entities v2 API
Endpoints for fetching lists of blockchain entities.
Coin Metrics Profile API
Profile endpoints
Coin Metrics Reference Data API
Metadata information of entities supported by Coin Metrics.
Coin Metrics Security Master API
Security Master endpoints
Coin Metrics Taxonomy API
Taxonomy endpoints
Coin Metrics Taxonomy Metadata API
Taxonomy Metadata endpoints
Coin Metrics Timeseries API
Endpoints for fetching metrics, market data, indexes and other time series data.
Coin Metrics Timeseries stream API
WebSocket endpoints for getting a real-time stream of metrics, market data, indexes and other time series data.
Scroll within the panel for all 19 ·
Open Collections 20
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONCoin Metrics API v4 Blockchain Explorer Job API
OPEN COLLECTIONCoin Metrics API v4 Blockchain Explorer Job Catalog API
OPEN COLLECTIONCoin Metrics API v4 Blockchain Explorer Job Catalog v2 API
OPEN COLLECTIONCoin Metrics API v4 Blockchain Explorer Job Full catalog API
OPEN COLLECTIONCoin Metrics API v4 Blockchain Explorer Job Jobs API
OPEN COLLECTIONCoin Metrics API v4 Blockchain Explorer Job Profile API
OPEN COLLECTIONCoin Metrics API v4 Blockchain Explorer Job Taxonomy API
OPEN COLLECTIONCoin Metrics API v4 Blockchain Explorer Job Timeseries API
OPEN COLLECTIONScroll within the panel for all 20 ·
Rate Limits 1
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Coin Metrics Rate Limits
RATE LIMITSEvent Specifications 1
Not every API is request/response. AsyncAPI describes the event-driven and streaming side — the webhooks and channels — so the asynchronous half of the interface is documented the same way the synchronous half is.
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Coin Metrics Timeseries Stream API
WebSocket streaming surface of the Coin Metrics API v4, derived from the published OpenAPI 3.0.2 definition (timeseries-stream tag). Real-time streams of metrics, market trades,...
ASYNCAPISecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for Coin Metrics — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 3
Portal, sign-up, and the first successful call
Documentation 4
Reference material describing how the API behaves
Agent Surfaces 4
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 5
Pagination, idempotency, versioning, errors, and events
Build 4
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Operate 4
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API
← All providers · Data indexed from github.com/api-evangelist/coin-metrics · machine-readable index on apis.io
This is an independent, third-party profile of Coin Metrics, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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